Removable type pourdrinibr paper making machine



:ZT J

June 4, 1929.

A. ALDRICH ET AL.

' REMOVABLE TYPE FOURDRINIER PAPER MAKING MACHINE Filed Sept. 19, 1925'7 Sheets-Sheet l June 4, 1929. A. ALDRICH ET AL v 1,715,528

REMOVABLE TYPE FOURDRINIER PAPER MAKING MACHINE Filed Sept. 19 1925 7Sheets-Sheet 2 June 4, 1929. A. ALDRICH ET AL 1,715,528

REMOVABLE TYPE FOURDRINIER PAPER MAKING MACHINE 7 Sheets-Sheet 5 V5 in Efl/ozzza June 4, 1929. ALD Rl CH ETAL EJ155428 REMOVABLE TYPE FOURDRINIER PAPER MAKING MACHINE Filed'sept. 19, 1925 7 Sheeis-Sheer 4 nl li- 5mm1929 A. ALDRHCH ET AL REMOVABLE TYPE FOURDRINIER PAPER MAKING MACHINE '7Sheets-Sheet 6 Filed Sept. 19, 1925 June 4,1929. A. ALDRICH ET ALREMOVABLE TYPE FOURDRINIER PAPER MAKING MACHINE Filed Sept, 19, 1925 7Sheets-Sheet Patented dune 4, 1929.

entries sr'rss *PATNT orFic E.

ALONZO ALDRICH AND EARL E. BERRY, OF BELOIT, WISCONSIN, ASSIGNORS TOBELOI'E IRON 'WORKS, A CORPORATION OF WISCONSIN;

REMOVABLE-TYlL-"E rou'nnnrirrnn PAPER-MAKING MACHINE.

Application filed September 19, 1925. Serial No. 57,272.

This invention relates to improvements in a removable table type ofFourdrinier p permaking machine. in machines of this type hithertoconstructed, tracks have been pro- 5 vided, secured to the supportingstrlilcture, on which the table may be laterally removed temporarily tofacilitate the changing of the Fourdrinier wire. In the operation ofchanging the wire, these tracks, which may be pivoted to the inside andoutside of thesupporting structure, are first broughtinto position. atright angles to the length of the ma- 2 lower run of the wire in normalposition is above the tracks whereas in suspended positi on said lowerrunmust be below the level of the tracks to enable the table to be movedinto normal position.

It is an object of our invention to provide a removable type ofFourdrinier wherein the nmu'berof steps required in changing the wi reis considerably reduced.

It a further object of'our invention to provide track means upon whichsaid tablemay be laterally removed, said t Tacks being positioned abovethe lower run of the wire for the purpose of facilitating the changingof the wire.

It is a further important object of our invention to provide an improvedremovable table and supporting structure therefor, wherein the tracks onwhich the table is adapted to be removed may be kept in operativeposition during the operation of the machine, said tracks forming a partof the supporting structure for said removable table in normal position.

.lt is also an. important object of our inven tion to provide an imprWed removable table and supporting structure therefor. wherein the tableis supported on inside tracks positinned above the lower run of thewire. whereby the necessity of moving or swinging down the various wirerolls at the time of changing the wire is eliminated and theconstruction greatly simplified.

ltis another objeetof this inventionto pr0- vide in combination with aFourdrinier paper machine of the shakeable type inside sup porting beamsor tracks for a removable table, whereby the distance between theshaking parts and a fixed support may he consider ably lessened and amore be thus obtained. 1 g

It" is a further object of our invention to rigid construction I provideimproved track meansupon which the table may be removed.

Other and further important objeetslof this invention will be apparentfrom the disclosures in the specification and the accompanying drawings.

This invention (in a preferred form) is illustrated in the drawings andhereinafter more fully described.

d On the drawings:

Figure 1 is a fragmentary diagrammatic side elevational view of aFourdrinier papermaking machine, showing a table and supportingstructure embodying the principles of this invention.

Figure 2 is a plan view of Figure 1, with the table removed to show thesupporting structure and tracks.

Figure 3 is an enlarged end elevational view taken substantially on lineIII'III of Figure 2.

Figure 4; is a broken plan view of Figure 3 with the table removed.

Figure 5 is an enlarged detail view. Figure 6 is an enlarged fragmentarysectionalview taken on broken line VI-VI of Figure 3, showing parts inelevation.

Figure 7 is an enlarged fragmentary View taken on line VIIVII of Figure3.

Figure 8 is an enlarged, fragmentary sectional View taken on lineVIII--VHI of Figure 3. y p

Figure 9 is a broken, end elevational. view of a modified form of ourinvention in operative position. i

Figure 10 is a' broken, plan view of the same. with the table removed.Figure 11 is an enlarged fragmentary view taken on line XI -XI of Figure9.- .Figure 12 an enlarged fragmentary View taken on line XIIXII ofFigure 9.

Figurel3 an enlarged detail view.

Figure 14 is a broken, end elevational view of a second modified form ofour device in operative position.

' Figure 15 is a top plan view of the same with the table removed.

Figure 16 is an enlarged fragmentary view taken on line XVI XVI ofFigure 14.

Figure 17 is an enlarged fragmentary view taken on line XVIIXVII ofFigure 14 with parts removed.

Figure 18 is a broken end view of a third modified form of our device inoperative position.

Figure 19 is a broken end view i a fourth modified form of our device,with the table removed, in operative position.

As shown on the drawings:

There is shown in Figure 1 a portion of a Fourdrinier paper machine ofthe removable table type embodying the principles of our invention. Thereference numeral 1 indicates a supporting structure, comprising apairof longitudinal beams, rigidly spaced apart by means of transverse beams2 bolted thereto. Mounted on said supporting structure 1 are a pluralityof transverse I-beams 3, which form a substructure on which a tablestructure 4 is adapted to be supported when in operative position andalso form tracks on which the table is adapted to be moved when a wireis being changed. Said table structure 4 comprises a pair of table rails5 supporting the usual table rolls 6 and suction boxes 7 together witha. wire uide roll 8, a wire stretch roll 9 and an. inside wire roll 1.0.A breast roll 11 and a lower couch roll 12 are separately supported. AFourdrinier wire 13 is shown in normal position passing around said.breast and couch rolls and over said table rolls. It will be noted thatthe rolls 9 and are so positioned as to carry the lower run of the wirebelow the level of the bottom flanges oi? the tracks The importance ofthis feature will be explained later. Return wire rolls 14, supportingthe lower run of the wire, are journalled in bearings carried by thesupporting beams 1. Any suitable shaking mechanism may be associatedwith the breast roll or table structure, or both.

The table rails 5 are supported by flanged rollers 15 running en saidtracks 3, said rollers being operated by means of a driven shaft 16 tocause the table structure 4 to roll as a unit over the tracks 3. Theconstruction and operation best shown in Figures 2 to 8 inclusive, w '1,taken. with Figure 1 show one form oi our invention.

The table rails 5 (Figure 3) are tied together by means of transv fl 1liars 17 to form the unitary table structure 4. The flanged rollers 15are securely mounted on the shafts 16, which in turn are journalled inbearings 18 formed in bifurcated members 39, said members 39 beingsecured to the lower flanges oi the beams 5 and to the ends of the beams17. A collar 19 on each side of said bearings 18 takes up any end thruston the shafts 16 and holds the rollers 15 against binding.

The member 39 on the back end of each of the beams 17 is drilled andthreaded to receive a locking screw 40 secured to the track 3, forlocking the table structure in place.

The inside tracks 3 are adapted to be pivoted at the front and backsides respectively of the machine by means of swivel brackets 20enclosing pivot pins 21 mounted 011 the I-beams of the supportingstructure 1. An outside track 22 is supported at its outer end by abracket 23, pivotally mounted on a post 24 in the floor 25. Said post 24is here shown as braced by a bracket 26 from the front wall 27 of themachine room. but it is obvious that any suitable supporting means maybe employed. The track 22 is adapted to be swung against the wall 27when not in use. When it is desired to change a wire on the machine, thetrack 22 is swung into the posi tion shown in Figure 2 in alinement withthe inside track 3. The abutting ends of the tracks 22 and 3 are bothformed on a diagonal as at 75 to limit the swing of track 22. The freeend of the track 22 is further provided with a leveling and securingmeans (Figure 8) which comprises a triangular shaped member 28 bolted tothe web of said track and hav ing screws 29 threaded through its base.The front I-beam 1 carries a bracket 30 having a rounded upper face orcam 31 against which said screws 29 are adapted to be threaded to holdthe track 22 in position. The free end of the track 3 is also adapted tobe locked when in operative position. For this purpose a bracket 32 issecured to the I-beam l on the rear side of the machine, said bracketbeing provided with a threaded locking pin 33 operated by a vise handle34. \Vhen the rail 3 is swung into operative position, the locking pin33 is adapted to be threaded through a hole formed in the web of therail 3 for that purpose. The pin 33 is threaded. into the rail 3 byturning the vise handle 34 until the web of said rail abuts a pair ofspacing bosses 35 integral with the bracket A yoke 36 is then threadedover the end of the pin and bolted into place by bolts 37, extendingthrough said yoke and rail web into threaded sockets formed in. thebosses 35.

It will be noted that both tracks 3 and 22 are provided with wearingchannels 38 (Figure 8) fitted over the top flanges of said tracks andadapted to be spanned by the flanged roll ers 15.

lVhile the machine is operating, the tracks 3 are in locked. posit-ionwith the table 4 resting thereon and also locked. In order to change awire the tracks 22 are swung into ope fative position and secured thereby means of the bolts 29. The locking screws 40 are then withdrawn andthe table 4 rolled out over the track 22. The tracks 3 are now unlockedand swung parallel to the front I- beam 1 of the supporting structure.The new wire is draped in position, the tracks 3 swung back into lockedposition and the table 4 rolled back into place between the upper andlower run of the wire. Since the lower run of the wire 13 is below thebottomedges of the tracks 3, saidtracks can be kept in operativeposition while the machine isrunning, thus making it possible for thetable 4 to rest directly on said tracks 3. This featurenot onlysimplifies the construction but also re duces the labor attendant uponchanging the wire.

In Figures 9 to 13 inclusive there is shown.

a modified form of construction of our invention, in which the insidetracks are similarly pivoted but the outside tracks are laterallyslidable. The supporting structure comprises, as before, front and backside I-beams, 41 and42 respectively, and transverse tie beams 43. Aforwardly extending bracket 44 is bolted to the web of the beam 41 toform a support for a roller carrying frame 45. Said frame 45 is providedWith a flanged base portion 46 bolted tosaid bracket 44 and the web ofthe beam 41, and a pair of upstanding sides 47and 48. 'A pair of flangedrollers 49 are journalled in said sides 47 and 48. A slidable I-beamtrack 50 is supported in part by saidrollers 49. The outer end of saidtrack is adapted to be supported in extended position by means of astandard or rest 51 in the-floor 52. A pair of small beveled rollers 53are rotatably mounted vertically above the rollers 49 on one side of thetrack 50. Said rollers 53 are mounted on pins 54 adjustably secured inthe side 47, and are so positioned as to bear against the top face ofthe lower flange of the track 50 and thus support said track inunbalanced position. The track 50 is held against said rollers 49between the flanged ends thereof to prevent said track from jumping oifsaid rollers 49 when being moved back and forth. A pair of oppositelypositioned adjusting bolts 55 extend from the frame sides 47 and 48 toabut each side of the web of the track 50 and thus hold it vertical.When the track 50 is in inoperative POSlbiOgTl it extends between thebeams 41 and 42, the back end of said track resting on a curved surface56 formed in a frame 57 secured to said beam 42. The frame 57 alsocarries a pair of adjusting bolts 59 similar to the bolts 55. An insideswinging track 60 is pivotally mounted at its frontend by means of abracket 61. Said bracket 61 encloses a pivot post 62 secured to anextension of the frame 45 and is adapted to be swiveled on said post 62.The free end of the track 60 in operative position rests on an elevatedseat 63 formed on the frame 57 A locking pin 64 (Figurell) serves tolock said track (50 in operative position to the frame 57.

A table structure 65, (Figure 9), comprising a pair of longitudinalchannel-shaped table rails 66 and 67 respectively and trans verse tiebeams 68, is mounted for rolling movement on said tracks 50 and 60. Apair of flanged rollers 69 and 7 O are mounted at each end of the beams68 in housings'r'l and 72 (respectively. Said housings 71 and 7 2 arepositioned beneath the lower flanges of the rails 66 and 67 respectivelyand are bolted thereto and to the beams 68. The back side housingv 72 isadapted to be locked in placeby a locking bolt 73 supported from thetrack 60.- As best shown in Figure 12, the rollers 69 and 7 0 roll onthe tracks 50 and 60 respectively. It will be noted that the insidetracks 60 are slightly higher than the sliding tracks 50 in order topermit the tracks 50 to be easily moved in and out of position. Theinner end ofeach track 50 is slightly tapered on its top face as at 74(Figure 13) to provide a gentle slope extending below the top face ofthe adjoining track 60. By this means there isno possibility of joltingas the table 65 is rolled out and the rollers 7 0 leave the tracks 60and the rollers 69 start on the tracks 50. During the operation of thepaper machine both sets of tracks 50 the tracks 60 swung back intolocked position.

The table 65 may now be rolled back over the tracks 50 onto the tracks60, and the tracks 50 pushed into positionalongside the tracksSO. Thepaper machine may be operated with the tracks 50 and 60 in this positionfor the reason that the lower run of thewire extends below said tracksand therefore does not interfere therewith. i

In Figures 14 to 17 inclusive there is shown a second modification inthe construction of Our invention in which both the inside and outsidetracks are relatively slidable or telescopic in effect. The referencenumeral 80 indicates a supporting frame comprising front and back sidebeams 81 and 82 respectively and transverse connecting beams 83 boltedthereto. A bracket 84' bolted to the web and upper flange of said beam81 at each of the front ends of the beams 83 supports a roller frame 85.Said roller frame 85 carries a pair of lower flanged rollers 86 uponwhich a track 87 is mounted for rolling movement, and two pairs ofvertically oppositely positioned. conical rollers 88 adapted to engagethe upper face of the lower flange of said track 87. The conical rollers88 serve to hold the track 87 in bearing relation with the rollers 86.Apair of opposing adjusting bolts 89 thread through a pair ofupsta-ndingears 90 formed on said-frame 85. Said bolts 89 are adapted tobe threaded against opposite sides of the web of the track 87 to holdsaid track in vertical position. A roller 91 mounted on a dependingbracket 92 from the outer end of the track 87 supports said track endfor rolling movement on a floor or other base 93. The inner end of eachtrack 87 is adapted to rest on a shoe 94 when in inoperative position,said shoe 94 being formed on a roller supporting frame 95 bolted to therear beam 82 and to a bracket 96 thereon. No stop is provided for thetrack 87 but its rearward movement is limited by the abutment of thebracket 92 against the front roller 86.

The frame 95 carries flanged lower rollers 97, conical rollers 98 andadjusting bolts 99 similarly positioned to the rollers and adj ustingbolts carried by the frame 85. A rearwardly extending track 100 rests oneach set of rollers 97 for rolling movement thereover, with the conicalrollers 98 bearing against the upper face of the lower flange of saidtrack to support the track in unbalanced position. A stop member 101 isformed on the frame 85 to limit the forward movement of said track 100and a pair of opposing threaded bolts 102 are mounted on said member tovertically aline said track 100 by contact with the web thereof.

A table structure 103, (Figure 14) comprising a pair of channel-shaped.table rails 101 and 105 respectively and a plurality of conneeting beams106, is mounted on said tracks 87 and 100 for rolling movement. For thispurpose a pair of flanged rollers 107 are carried in each of thehousings 109 and 110 secured to the under sides of the rails 104 and 105at the front and rear ends respectively of the transverse beams 106.Said rollers 107 are adapted to run on the tracks 87 and 100respectively. A locking pin 111 is secured by a lug 11.2 to the rear endof the track 100 and. is adapted to be thrown into engagement with thehousing 1.1.0 to lock the table structure 103 in normal position.

When the paper machine is operating, both of the tracks 87 and 100 arein telcscoped position, lying between. the supporting beams 81 and 82.In order to change the wire, the tracks 87 are run out and the structure103 rolled out over them. The stop member 101 is flanged to form acontinuation of the track 100 over which the rollers 108 may run. Whilethe table is resting on the tracks 87. the tracks 100 are pulled out tothe rear to allow a new wire to be strung in position. The tracks 100are then run back into place, and the table rolled back on them andlocked. The tracks 87 are rolled into telescoped position again and theoperation is complete.

Figure 18 discloses a third modified construction in which the innertracks are pivoted and the outer tracks manually removable. A pair oflongitudinal beams and 121 on the front and back sides respectively,

together with connecting beams 122 form the supporting structure, whichis the same in all the various constructions. A plurality of innertracks 123 are each provided at their front ends with a swivel bracket124 bolted thereto and adapted to pivot upon a pivot post 125 mounted onthe beam 120. A locking device 126, having a vise handle 127, issupported by a bracket 128 on the beam 121 for locking the free end ofeach of said tracks 123. A table structure is rollingly supported onsaid tracks 123, said table comprising the usual channel-shaped tablerails 129 and 130 and transverse tie beams 131 bolted thereto. A roller132 in a housing 133 supports the front side of the table structure oneach track 123 and a similar roller 134 in a housing 135 supports theback side of the table on each of said tracks 123. A locking bolt 136 isprovided for engaging each rear housing 135 to lock the table in normalposition. An outer removable track 137 affords a means for supportingsaid table when run out to one side of the machine. Said track 137 ispreferably built up of some light metal such as aluminum so that it maybe easily carried manually. It is here shown of truss-like constructionwith depending legs or supports 138 secured thereto and adapted to bepositioned in sockets 139 formed in a floor or base 140. A bracket 14:1,securely bolted to the beam 120, removably supports the free inner endof said track 137 and holds it in alinemcnt with the track 123.

lVhile the machine is running, the outer tracks 137 may be removedentirely and put away, but when it becomes necessary to change a wire,the tracks 137 are brought int 0 the position shown in F igure 18. Thetable is unlocked and rolled out on to said tracks 137, as in theprevious instances, and the tracks 123 unlocked and swung parallel tothe machine. After the new wire has been suspended in position, thetracks 123 are swung back into locked position and the table rolled backon to them and locked. The outer tracks 137 may then be detached fromthe bracket 141 and removed.

There is shown still a fourth modification of our invention in Figure19, in which both the inside and outside tracks are pivotally mounted.The suporting frame in this case comprises, as usual, a pair oflongitudinal beams 1.50 and 151 and connecting beams 152 securedthereto. A plurality of inner tracks 153 are each mounted on the frontbeam by means of a swivel bracket 154 bolted to said track 153 andpivotally engaging a pivot post 125 secured to said beam 150. The freeend of each of said tracks 153 is adapted to be locked in normalposition by a locking device 156 secured to the rear beam 151 by abracket 157. The free end of each track 153 also carries a lockingdevice 158 for the table structure (not shown) similar to the lockingsaid inner tracks 153. rolled out over the outer tracks 159, the innerdevice 136 in Figure 18. A plurality of outer tracks 159 are eachpivotally mounted by means of a swivel-bracket 160 and pivotpost 161,said post being supported from the beam 150 by a bracket 162. A roller16S, journalled in a depending bracket 16%, supports the outer end ofeach track 159 on a floor or other base 165. When it is desired toremove the table laterally, as in changing a Wire, the outer tracks 159are swung out as shown in Figure 19 into alinement with The table isthen tracks 153 unlocked and swung parallel to the beam 1.50 and the newwire suspended in position. The tracks 153 are swung back and locked inplace, the table rolled onto said bl'iLCl-ZS and the tracks 159 swungalongside the beam 150.

In all the various modified forms of our invention, it will be notedthat the wire in its normal position is below the tracks upon which thetable is adapted to be removed. Consequently the inner tracks may bekept in operative position during the running of the machine withoutinterfering with the wire. This means that the inner tracks are normallyin position for changing a wire without the additional labor of placingthem Consequently both time and labor are saved by means of our improvedconstruction. Furthermore the table structure may be nor mally supporteddirectly upon the inside tracks, thus simplifying the construction andoperation.

Vi e are aware that many changes may be made, and numerous details ofconstruction may be varied through a wide range without departing fromthe principles of this inven tion, and we therefore do not purposelimit-- ing the patent granted hereon, otherwise than necessitated bythe prior art.

W e claim as our invention: 1

1. In a paper making machine, a table, a,

supportin g structure therefor, and a plurality of track membersassociated with sa1d structure upon which said table normally rests andmay be removed, said track membersrality of track members associatedwith said structure upon which said table may be re moved, said trackmembers comprising inner tracks, pivotally secured. to said structure,and outer tracks adapted to be alined with said inner tracks, andpivotal supports for said outside tracks separate from the supportingstructure.

3. In a paper making machine, a table, a wire associatedtherewith, asupporting structure therefor, and a plurality of track membersassociated with said structure upon which said table normally rests andmay be removed, said track members comprising inner tracks pivotallysecured to said structure above the lower run ofsaid wire, and outertracks adapted to be alined with said inner tracks.

4. In a paper making machine, a table, a plurality of inside and outsidetracks upon which said table may be removed. and means for supportingsaid outside tracks from their outer ends vertically hinged thereto.

5. In a paper making machine, a table, a plurality of inside and outsidetracks upon which said table may be removed and means for pivotallysupporting said outside tracks from their outer ends.

6. In a paper making machine of the Fourdrinier type, a table removableas a unit, longitudinal supporting side beams, and tracks eachpivot-ally mounted at one end on said side beams on which said table isadapted to normally rest, said tracks serving as a partial support forsaid table during its removal.

7. In a Fonrdrinier paper machine, a laterally removable tablestructure, comprising longitudinally extending side beams, table railsmounted thereon, tracks positioned beneath said Side beams and normallyextending transversely thereof, rollers carried by said side beamsadapted normally to rest upon said tracks to support the table inoperative position, and other tracks adapted to form extensions withsaid first mentioned tracks for the lateral removal of said table,

all of said tracks being capable of movement in a horizontal plane. Intestimony whereof we have hereunto subscribed our names.

ALONZO ALDRICH. EARL E. BERRY.

